Nordic Naturals Vitamin D3 1000IU Vegan 1flozMade from lichen, a naturally vegan source of D3Each serving provides 1000 I.U. of vitamin D3Supports calcium absorption for healthy bones*Supports immune system function*Helps regulate mood and sleep rhythms*Vitamin D3 Vegan is a unique formula specifically developed for vegans, strict vegetarians, or for those who prefer a non-lanolin form of vitamin D3. Sourced from organic lichen, this plant-based liquid formula is in the natural form of vitamin D (cholecalciferol) and is better absorbed and utilized by the body.* Each serving provides 1000 I.U. of vitamin D3 for healthy bones, mood, and immune system function.